Correct.

With most things, like Ubers for example, there really is not a substantial dofference between an average job and an exceptional job. Like, sometimes someone really stands out as exceptional - but almost always, the one and only standard is "completed job without incident". By giving your Uber driver 4/5 stars because they didn't offer you bottled water or whatever, all you are doing is punishing some random person who did a perfectly fine job, possibly significantly impacting their ability to make money and pay their rent.

What should really happen is that these companies switch to a one star system. 1 star = completed job without major incidents. 0 stars = major incident.